Cement roofing-tile.



W. E. LINDAU.

CEMENT ROOFING .TILE.

APPLICATION FILED FEB. 2, 1910.

973,946. Patented 0011.25, 1910.

2 SHEETSSHEET 1.

t 10 Z Y ammfi for $512 F William Elzhdaa.

W. E. LIND AU.

CEMENT ROOFING TILE. APPLICATION FILED rm. 2, 1910.

973,946. Patented Oct. 25, 1910.

2 SHEETS-SHEET 2.

q/vitmeooaa 7 wwntoz Mzliamfifbin Jazz.

WILLIAM E. LINDAU, 0F NAPOLEON, OHIO.

CEMENT ROOFING-TILE.

erases.

Specification of Letters Patent.

Patented Get. 25, 1910.

Application filed February 2, 1910. Serial No. 541,476.

ing tight locking joints.

The object of this invention is to provide a roofing tile of cement or other similar material so constructed. and arranged with overlapping locking joints as to form a durable tile which can be compactly laid in layers upon a roof and. present a smooth surface with locked joints.

W'ith these and other objects in view the invention consists of certain novel combinations, constructions and arrangements. of

parts, as will be hereinafter fully described and claimed.

In the accompanying draw1ngs:'F1gure partly broken away and in section a nu1nber of rooting tiles connected together and secured to a roof formed in accordance with this invention. Fig. '2 is a detail perspec- H tive viewof a roofing tile constructed in ac- '-cordance with this invention. Fig. 3 is a longitudinal section of the roofing tile taken on line a:-m of Fig. 2. Fig. 4. is a detail View in longitudinal section on line y3 of Fig. 1, showing the locking joint connect- 0 ing the upper and lower ends of the pair of tiles. Fig. 5 is a detail view in perspective of the reverse or under side of the tile shown in Fig. 2.

In carrying out the invention a tile 1 of cement concrete or other suitable material is formed of a rectangular shape, with a longitudinal flange 2 at one side having on its under side the longitudinal grooves 3 which extend from end to end of the inner or 0 under side of the tile. The opposite side of the tile is formed with a flange 4 having longitudinal ribs 5, and a shoulder 6 extend ingvlen thwise of the tile adjacent to the rib 5. The upper end of the tile 1 on its outer face is formed with transverse ribs 7 which in turn form a transverse groove 8.

1 is an enlarged view in perspective showing The lower end of the tile, on its under side, is formed with a transverse raised strip 9, extending from one edge of the tile and terminating at its other end adjacent to the grooves 3 in the flange 2. The strip 9 is also formed with ribs 10 which in turn form a groove 11. The under side of the flan e 4 is formed with a raised strip 12 exten ing from one end of the strip 9 to the upper end.

of the tile and also with a raised strip 13 extending froin the end of the strip 12 on the upper end at the side of the tile and terminating at a short distance from the grooves 3. The tiles constructed as hereinbefore set forth are arranged in overlapping layers on a roof as shown in Fig. 1. The ribs 7 at the upper end of the outer side of the tile interlocking with the ribs 10 at the lower end of the under side of the tile whose lower under side overlaps the upper end of the lower tile. The flange 2 on one side of the tile, overlaps the flange 4 of the adjacenttile, the ribs 5 being located in the grooves 3 and theadjacent edge of the flange 4 abutting against the end of the strip 9, while the edge of the flange 2 abuts against the shoulder 6. j

It will be seen that by means of this construction the adjacent edges of the tiles are closely interlocked together thereby holding the tiles firmly together and forming a tight joint, thereby preventing rain from penetrating through to the roof. As shown in Fig. 1 the tilesare preferably so arranged as to have the longitudinal joints of one layer of tiles break joints with the longitudinal joints of the adjacent or next layer of tiles. As shown in Fig. 4, the groove 11 formed by the ribs 10 is of such a width that one of the ribs 7 extending through the groove affords a passageway 11' which serves as means for allowlng the passage of air. It will be noticed also that the raised strips 12. and 13 also serve to form an air space on the under side of the tile. The tiles so constructed and arranged may be secured to a roof in any suitable manner and as here shown are secured to cross strips 14, which are placed upon a roof, by means of wires 15 one end of which is embedded in the tile on its under side, the wirebeing bent around the strip 14 secured thereto in any suitable manner as for instance by being twisted about a pin or nail 16 in the strip 14. The tiles further may be secured to the roof by means of nails which may be driven through the holes 17 shown in the tile in Figs. 1, 2, 3, and 5.

It will be seen that by means of the particular form of locking joints the tiles will present a smooth surface and eachseries of tiles overlapping the adjacent series rests closely against the same.

Having described the invention, what I claim is A tile of the class described comprising a body of substantially rectangular outline and provided with top, bottom and side edges and upper and under surfaces, said body having its upper surface rabbeted I along one side edge and its under surface grooved along the other side edge, ribs extending throughout the length of the rabbeted portion, a rib extending across the upper surface at the top edge thereof, a second rib arallel to the last mentioned rib and space therefrom, a strip extending across the under face at the bottom edge,

said strip extending from the edge of the rabbeted side toward the opposite edge and terminating a distance from the grooves equal to the width of the rabbet, a pair of spaced ribs extending the full length of said strip, one of said ribs being at the bottom edge of the strip and the other intermediate its width, a second strip extending along the under surface of the body beneath said rabbet from the upper edge of the body to the first mentioned strip, and a third strip extending along the lower edge of the body from the last mentioned strip, the under surfaces of the ribs on the first strip and of the remaining strips all lying in substantially the same plane.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

WILLIAM E. LINDAU. Witnesses CHAS. M. MAGILL, JOHN C. RAGAN. 

